Automobile-heater



P. J. CUBBISUN.

AUTOMOBLE HEATER.

APFLICATION min APR. 4, Isar.

1 ,306,58 l Patented J une 10, 1919.

PAUL J. ("2'BBISON,v OF CASTLE, PENNSYLVANIA.

AUTOMOBLELE-HEAEEIQ.

Specification of Letters Patent.

Patented J une 10,V 1919.

Application filed April 4., 1917;. Serial No. $3,774.

To all `whom it may concern;

Be it known that I, PAUL J. Gunnison, a citizen of the United States and resident of New Castle, in the county oi' Lawrence and State oli Pennsylvanie,,k have invented a new and useful Improvement in Automobile-Heaters; and I do hereby declare, the following to be a i'ull, clear, and exact clescripti'on thereof.

This invention relates to heating appliances and is particularly, thwlgll not 6X- clusively, concerned with heaters for automobiles. Ovne of the great diliicuities in such heaters is that the passage lor the gases through the heating element is nsti-ally oi larger cross-section than that of the intake, and also sometimes thediameter oi the intake. Pip@ iS larger than that of the engine exhaust pipe from which the gases alie taken. This results '1n XPnlQn Q the gases beffe e reaching the heater,A which absorbs the eat, thiis lowering the heating elfieny 0f the bester; also, if to@ small a tubing be used to supply the gases from the exhaust pipe to the heating element, the result is a Ierse LOSS of heat units and a shrinkage of the gases betere they reach the heating` element through rndiation which lowers the heating efiicieney.

One of the obflets of this invention is, therefore, to prov-ide a construction in which the passage threngh the heatin n eleinent is of uniformi diameter, so that t re will be ne experts' 0f the eases in .their asses@ through t `e heater resulting 1n oss of radiant heat. A

A further Obt is. te seerlv .Urs through a tube Q larger rosssewnal als@ than, the cross-sectional passngs hreugh the heating element thus su lying t, gas @it the mam-111m www vliegwthe beati element thus raising the iene); of t heaters A further diflicnlty with these heaters rc- Sulfis from the sois@ mdll d. from the @X- hwst ef desees. me tile htiss el@- mentf. This, ihren 1911 Wammes this diffieulty by giving t e gases a whirling ino,-

tion at theheater Ontlet, vgherl-iy the n 'se 0i the sistemas ses issllais 1th t 1S and other o jects in vlevv as WilV appear freni the followin desertptioin the` invention Censis@ in t. e oonstruotion an ar.-

rangement heating iev-ice,k pxefeire embodiinents of which are illustrated in the accompanying drawings@ though it is to be understood that the invention is not limited to the precise forms here illustrated and described.

In t1 e drawings Figure l shows a )1an View oY one form of heater element; ig. 2 is a horizontal sectional view of the device shown in Fig. 1; Fig. 3 is a vertical sectional View on the line .3f-3, Fig. 1; Fig. 4; a cross-sectionai view on the lino lll, Fig. 1; Fig. 5 vis a vertical section o't' a different alfrangenlent of the heater; and Fig. 6 is a fragmentary vertical longitudinal section of the forni of heater shown in Fig. 5.

in the embodiment oi my invention hereA in selected for illustration, Vand as illustrated in Figs.` l'to 4 inclusive, l indicates the heater element proper which tney be inthe imm 0f a tasti having Passes@ 2, 3 and l separated by aille-walls or battle-plates 5, and 6. The inlet opening is illustrated at T and, communicates by a lateral passage 8. with the first heeter passage 2. The heater passage 2 communicates with the heater passage 3 by means of an opening 9. ngt the end of the heater opposite the inlet, and passage 3 conniiunicates with pass ge 4 by Jneans of an opening l() adjacent the inlet, but separated therefrom by a wall 11. The pnssa e 4 communicates with an outlet openin g through a lateral passe e 13 the` Wal '14 of outlet. 1t will sa# that the sessi it @meme the heater inpinge against n curved Wall 15t near the in et l This gives the gas ino-re or less of a, vg y11:11 g rnotion in the heater passage and this W irlirg motion continues in the as 1t p sses song the passages 2! 3 and t n order tvat the gases ay not be pocketed in the en eef'l @in the heater, I pro vide the `Wal 1 of the inlet opening With an apeture 17, Whiby the incoming gases being Ender greater pressure due to carrying a greater number of het units not having contracted through ra iation oi' heat, scli as the gases 1n passage 4, a portion o the gases pass through apertuijes 17 under pressure, causing a jet'of the incoming gas to pass directly into passage l causing the g ses in passage et to have a @greater velocity, a so preventing pocketing of dead gases in spne 1G. As the gas pnsses out troni theheater Plsslgl 4 hnougli the ontlet opening 13 into the outlet 12, it is again given a further \\hirling motion by reason ot' ilnpingement against the wall 18 adjacent the outlet opening. Moreover, this whirling motion is accentuated or increased by forming a passage 19 in the wall 1-1 ot the outlet opening Which passage 19 is arranged tangentially to the outlet and serves to increase the whirling motion ot' the gas, so that when the latter escapes from the heater, such whirling motion will serve to silence the noise of the eX- haust. The heater element beneath the floor of the Car may of course be surrounded by the usual sheet metal acket 20 upon which the grille 2l is mounted forming the floor protection over the heating element. The sheet metal casing may, if desired, be provided with struck-down portions 22 which, as shown in Fig. 4, may be directed toward the front of the car in order to admit fresh air to the casing to be heated by the heater element.

In the form of the invention illustrated in Figs. 5 and 6, the heater element 23 may be arranged in upright position having a flange base 24 and the passages 25, 9.6 and 27. such passages communicating with each other in a manner similar to that heretofore described, as for example, an opening 2S alfording communication between adjacent passages.

It is to be noted that this heating element is cast in one piece, therefore, there are no parts to be assembled other than the connecting up of the inlet and outlet pipes. Furthermore, the heater element is cast in such form that by its own construction, it afords the necessary motion to the vases to prevent any noise at the exhaust. I:Moreoveig particular attention is called to the fact that all of the passages in the heater element are of precisely the same cross-section, so that absolutely no expansion of the gases can take place while passing through the heater element due to increased cross-area of these parts. This is a feature which appears to have been lost sight of in the construction of heaters heretofore, so far as at present known, but the advantages of the construction have been amply demonstrated in practical use of heaters of the construction herein shown.

While particular constructions and arrangements ofthe heater are here illustrated and described, it is to be understood that the invention is not limited thereto, but that the form, construction and arrangelnent of parts may be varied widely within the scope of the appended claims.

that I claim is:

1. A heater for utilization of the exhaust gases of an internal-combustion engine comprising a heater element having a passage for the gases of substantially uniform crosslsectional area throughout, the inlet and outlet ends of said passage being curved to produce a whirling motion to the gases both on entrance to and exit from said heater element, whereby the noise of exhaust 'from the heater is silenced.

2. A heater for utilization ot the exhaust gases of an internal-combustion engine coinprising a heating element proper having a sinuous passage of substantially uniform Cross-sectional area throughout, the inlet and outlet ends of said passage bein curved to produce a whirling motion to tie gases in their passage through. the heater element, and means at the exhaust port of said element to augment or increase the whirling motion of the gases whereby the noise ot the exhaust from the gases of the heater element is silenced.

3. A heater for utilization of the exhaust gases of an internal-combustion engine coniprising a heater element proper having a plurality of parallel passages therein, alternate adjacent passages heilig connected at opposite ends of the heater, the end portion of the inlet passage of said heater element heilig so formed as to impart a whirling motion to the gases upon entering the heater element, and the outlet passage having its end portion likewise formed to impart a whirling motion to the gases upon escape from the heater element in order to silence the noise of exhaust of the gases from said heater element. y

4. A heater for utilization of the exhaust gases of internal-combustion engines, comprising a heating element proper having a plurality of adjacent passages therein, alternate adjacent passages being in communication at opposite ends of the heater, a jet port from the interior of the heater to the inlet passa e arranged tangentially to said passage or directing gas from said inlet into the exhaust passage to accelerate the passage of said gases through the heater.

5. A heater for utilization of the exhaust gases of internal-combustion engines, comprising a heating element proper having a plurality of adjacent passages therein, alternate adjacent passages being in communication at opposite ends of the heater, a port from the interior of the heater into the outlet port of the heater and arranged tangentially to the Wall of the said outlet port whereby gas may escape from the interior of the heater element into said outlet ports and impart a whirling motion to the gases exhausting from said heater element to silence the noise of the exhaust.

` 6. A heater for utilization of the exhaust gases of internal-combustion engines, comprising a heating element proper having a plurality of adjacent passages therein, alternate adJacent passages being in communication at opposite ends of the heater, a port from the interior of the heater to the inlet passage arranged tangentially to said passage to direet gas from said inlet into the exhaust passage to accelerate the exhaustion of sait gas, and also a port into the outlet port of the heater arranged tangentially to the Wall of said outlet port whereby gas may escape from the interior of the heater element into said outlet passage and impart a whirling motion to the gases exhausting from said heater element to silence the noise of the exhaust.

7. A heater for utilization of the exhaust gases of internal-coinbustion engines, coniprising a heating element proper having a plurality of adjacent passages therein, alternate adjacent passages bein in connnunieation at opposite ends of the eater, a jet port from the interior of the heater to the inlet port for keeping the gases in motion through the heater passages toward the outlet port.

8. A heater for utilization of the exhaust gases of internal-eombustion enginesA` comprising a heating element proper having a plurality of adjacent passages therein, alternate adjacent passages being in communication at opposite ends of the heater, a jet port from the interior of the heater to the inlet passage arranged to direct a portion of the incoming gas to displace the gases from which the heat has been extracted.

In testimony whereof I, the said PAUL J. CUBBIsoN, have hereunto set my hand.

PAUL J. CUBBISON.

Titnesses H. Gr. MILLER, L. P. MAGGART.

Copies of this patent may be obtained for five eents each, by addressing the Commissioner of Patents, Washington, D. U. 

